Home / 10,345.50-15,520.14-3,326.58

Finding the Fourth Proportional to 10,345.50, 15,520.14 and 3,326.58

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Solution

The fourth proportional to 10,345.50, 15,520.14 and 3,326.58 is: 4,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.50 : 15,520.14 = 3,326.58 : x
  2. Step 2: Convert to fraction form
    10,345.50/15,520.14 = 3,326.58/x
  3. Step 3: Cross multiply
    10,345.50x = 15,520.14 × 3,326.58
  4. Step 4: Simplify right side
    10,345.50x = 51,628,987.32
  5. Step 5: Solve for x
    x = 51,628,987.32/10,345.50
  6. Step 6: Final answer
    x = 4,990.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.